Delta Air Lines flight DL 1257: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Fri,Sun 14:09 Las Vegas Harry Reid (LAS) 1 16:59 Seattle-Tacoma (SEA)
DL 1257 Non-stop Boeing 737-800 (738) 2:50 Effective 2026-02-12 through 2026-03-06
Sat 14:09 Las Vegas Harry Reid (LAS) 1 17:00 Seattle-Tacoma (SEA)
DL 1257 Non-stop Boeing 737-800 (738) 2:51 Effective 2026-02-14 through 2026-03-07
Mon,Tue,Fri-Sun 18:25 Atlanta (ATL) S 20:11 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:46 Valid until 2026-01-04
Daily 19:00 Atlanta (ATL) S 20:50 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:50 Effective 2026-05-07 through 2026-08-09
Daily 19:00 Atlanta (ATL) S 20:51 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:51 Effective 2026-08-10 through 2026-10-05
Daily 19:00 Atlanta (ATL) S 20:46 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:46 Effective from 2026-10-06
Mon-Fri,Sun 20:10 Atlanta (ATL) S 22:02 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:52 Effective 2026-04-13 through 2026-05-06
Sun 20:20 Atlanta (ATL) S 22:02 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:42 Operates only on 2026-01-11
Mon-Fri,Sun 20:20 Atlanta (ATL) S 22:02 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:42 Effective 2026-01-19 through 2026-02-06
Mon-Wed 20:20 Atlanta (ATL) S 22:02 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:42 Effective 2026-02-09 through 2026-02-11
Daily 20:27 Atlanta (ATL) S 22:10 Baltimore (BWI)
DL 1257 Non-stop Boeing 737-900 (739) 1:43 Effective 2026-03-08 through 2026-04-12
Sun 21:55 Atlanta (ATL) S 23:37 Baltimore (BWI)
DL 1257 Non-stop Airbus A321 (321) 1:42 Operates only on 2026-01-18
This flight number is listed as serving the following routes:


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Delta Air Lines flight DL 1257: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Delta Air Lines DL1257
14:09
Las Vegas Harry Reid (LAS) 1

16:59
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-800 (738)
Direct Flights:
Delta Air Lines DL1257
14:09
Las Vegas Harry Reid (LAS) 1

17:00
Seattle-Tacoma (SEA)
Effective 2026-02-14 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:51, non-stop
Boeing 737-800 (738)
Direct Flights:
Delta Air Lines DL1257
18:25
Atlanta (ATL) S

20:11
Baltimore (BWI)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 1:46, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
19:00
Atlanta (ATL) S

20:50
Baltimore (BWI)
Effective 2026-05-07 through 2026-08-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:50, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
19:00
Atlanta (ATL) S

20:51
Baltimore (BWI)
Effective 2026-08-10 through 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:51, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
19:00
Atlanta (ATL) S

20:46
Baltimore (BWI)
Effective from 2026-10-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:46, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
20:10
Atlanta (ATL) S

22:02
Baltimore (BWI)
Effective 2026-04-13 through 2026-05-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:52, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
20:20
Atlanta (ATL) S

22:02
Baltimore (BWI)
Operates only on 2026-01-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:42, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
20:20
Atlanta (ATL) S

22:02
Baltimore (BWI)
Effective 2026-01-19 through 2026-02-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:42, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
20:20
Atlanta (ATL) S

22:02
Baltimore (BWI)
Effective 2026-02-09 through 2026-02-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:42, non-stop
Airbus A321 (321)
Direct Flights:
Delta Air Lines DL1257
20:27
Atlanta (ATL) S

22:10
Baltimore (BWI)
Effective 2026-03-08 through 2026-04-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:43, non-stop
Boeing 737-900 (739)
Direct Flights:
Delta Air Lines DL1257
21:55
Atlanta (ATL) S

23:37
Baltimore (BWI)
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:42, non-stop
Airbus A321 (321)
This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Baltimore (BWI)
  • Las Vegas Harry Reid (LAS) - Seattle-Tacoma (SEA)
All Delta Air Lines flights
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